用于狭窄空间的新型伸缩臂的设计与研究

发布时间：2018-09-14 07:19

【摘要】：由于水泵、燃油锅炉内管道难于检查,设计和研究了一种用于狭小空间的伸缩臂。该伸缩臂采用钢卷尺模型的机械结构,沿卷尺的边缘焊接形成机械臂。电机通过齿轮驱动分度轮,分度轮带动机械臂伸缩,伸缩臂拥有卷曲存储功能。机械臂的截面参数包括厚度、圆心角、弧长,用弹性力学的薄壳理论分析计算了圆心角的取值大小。基于Workbench软件,分析了机械臂的圆心角、厚度对机械臂X和Y方向的伸直能力的影响。结果表明随着圆心角的增大,在Y方向的变形量逐步减小,在X方向的变形量逐步增大,在40°之前变化速率快,在40°之后变化速率慢;随着厚度的增大,在X、Y方向的变形量呈变小趋势。以理论和仿真研究为依据,确定了厚度0.1 mm和45°圆心角的尺寸,最终通过实验,得出了机械臂的真实承载情况,确定了机械臂的可靠性设计参数。
[Abstract]:A telescopic arm is designed and studied for a narrow space due to the difficulty of inspecting the inner pipes of water pumps and oil-fired boilers. The telescopic arm uses a mechanical structure of a steel tape model and is welded along the edge of the tape to form a mechanical arm. The motor drives the indexing wheel through a gear, the indexing wheel drives the mechanical arm to telescope and the telescopic arm has a crimping storage function. Based on Workbench software, the influence of the center angle and thickness of the manipulator on the flexibility of the manipulator in the X and Y directions is analyzed. The results show that the deformation in the Y direction decreases gradually with the increase of the center angle, and the deformation in the X and Y direction decreases gradually. The deformation in the direction of X and Y becomes smaller with the increase of thickness. Based on the theoretical and simulation research, the dimensions of 0.1 mm and 45 degrees of thickness are determined. Finally, the true load-bearing situation of the manipulator is obtained through the experiment, and the deformation in the direction of X and Y becomes smaller with the increase of thickness. The reliability design parameters of the manipulator are given.
【作者单位】：同济大学机械与能源工程学院;
【基金】：上海科技支撑计划项目(15-3-6-60)资助~~
【分类号】：TH122

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